FAIR VALUE MEASUREMENT - Recurring (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	$ 137,463	$ 115,590
U.S. Government Agencies
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	1,985	5,544
Preferred equity securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	14,984
Municipal securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	14,096	16,687
Mortgage-backed securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	34,252	36,578
Collateralized mortgage obligation
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	24,710	27,695
SBA securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	7,060	7,667
Corporate Bonds
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	40,376	21,419
Fair Value, Inputs, Level 1 [Member]
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	14,984
Fair Value, Inputs, Level 2 [Member]
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	122,479	115,590
Fair Value, Measurements, Recurring [Member]
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	137,463	115,590
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	1,985	5,544
Fair Value, Measurements, Recurring [Member] | Preferred equity securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	14,984
Fair Value, Measurements, Recurring [Member] | Municipal securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	14,096	16,687
Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	34,252	36,578
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligation
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	24,710	27,695
Fair Value, Measurements, Recurring [Member] | SBA securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	7,060	7,667
Fair Value, Measurements, Recurring [Member] | Corporate Bonds
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	40,376	21,419
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	14,984	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. Government Agencies
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Preferred equity securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	14,984
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Municipal securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Mortgage-backed securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Collateralized mortgage obligation
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | SBA securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate Bonds
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	122,479	115,590
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. Government Agencies
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	1,985	5,544
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Preferred equity securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Municipal securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	14,096	16,687
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage-backed securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	34,252	36,578
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized mortgage obligation
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	24,710	27,695
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | SBA securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	7,060	7,667
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate Bonds
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	40,376	21,419
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. Government Agencies
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Preferred equity securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Municipal securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Mortgage-backed securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Collateralized mortgage obligation
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | SBA securities
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Bonds
Investments, Fair Value Disclosure [Abstract]
Investment securities available-for-sale	$ 0	$ 0